baber/WOPTO huggingface dataset:
Patent GB-1245472-A (GB)
Title: Optical label reading systems
Inventor: STITES FRANCIS H
IPC: G06K7/10
Filed: 1968-07-16
Abstract: 1,245,472. Track apparatus. G.T.E. SYLVANIA Inc. 16 July, 1968 [19 July, 1967], No. 33897/68. Heading B7N. [Also in Division G1] In an arrangement of the kind described in Specification 964,570 in which a coded label formed of a vertical stack of horizontal, coloured, retro-reflecting stripes on an object, e.g. a railway vehicle, is scanned vertically by a light beam to read the coded information, improper operation due to foreign matter, e.g. dirt on the label is largely eliminated by operating the arrangement with polarized light. Light from source 18 is polarized by polarizer 19 and scans the label 1 via mirror 30 and mirrors 32 on rotating drum 34. Polarized light reflected from a stripe and unpolarized light scattered by the foreign matter present on the stripe is directed via the mirrors 32 through apertures in mirror 30 and mask 48 to a dichroic mirror 35. Assuming the stripe colour is blue, the polarized light and the blue component of the unpolarized light is passed via blue pass filter 54 to a beam splitter 65. The polarizer 71 is similar to polarizer 19 and passes the polarized blue light and that part of the unpolarized blue light having a similar plane of polarization to a detector 73, e.g. a photo multiplier. Polarizer 70 passes light polarized at 90 degrees to that passed by polarizer 71 and hence only passes the portion of the unpolarized blue light having that plane of polarization to a similar detector 72. The portions of the unpolarized signal passed by the polarizers 70, 71 are similar in amplitude and that passed by polarizer 70 is subtracted from the signal developed by detector 73 in a subtract circuit 74 which provides an output which is a function only of the reflected polarized blue light. Similarly, light converting means 56 provide an output when an orange stripe is scanned. Fig. 2 (not shown) shows a simpler arrangement for use when the stripes are of a single colour.
Patent GB-798667-A (GB)
Title: Organopolysiloxane compositions
IPC: C08K5/14
Filed: 1956-11-07
Abstract: A vulcanizable composition comprises an organopolysiloxane of the general formula <FORM:0798667/IV (a)/1> in which each R is a vinyl, lower alkyl or aryl radical containing less than 8 carbon atoms, at least one R on each terminal silicon atom being a vinyl radical, n has an average value of at least 250 and each R1 is a monovalent hydrocarbon or halogenated hydrocarbon radical having less than 8 carbon atoms, there being not more than 1 mol. per cent of total alkenyl siloxane in the polysiloxane, and from 0.1 to 3 parts by weight of an organic peroxide vulcanizing agent per 100 parts of polysiloxane. Peroxides specified are benzoyl, monochlorobenzoyl, 2 : 4 - dichlorobenzoyl and dicumyl peroxides, tertiary butyl peracetate and isopropylbenzene and p-tertiary butylisopropylbenzene hydroperoxides.  Fillers may also be added, e.g. titanium, magnesium, zinc, ferric, chromic, zirconium and aluminium oxides, fume silicas, silica aerogels, diatomaceous earth, crushed quartz, glass fibres, clays, asbestos, carbon black, cork, cotton and synthetic fibres; the inorganic fillers may also be modified by having e.g. trimethylsilyl or alkoxy groups attached to their surfaces.  Compression-set additives, oxidation inhibitors, thermal stabilizers and pigments may also be added.  Examples are given showing the superiority of the polymers over other siloxane polymers of equivalent degree of polymerization.  Uses-making gaskets, rubber tubing and electrical insulation.
Patent GB-1474626-A (GB)
Title: Process for deodorising waste gases preferably containing co2
IPC: B01D53/77
Filed: 1974-08-01
Abstract: 1474626 Deodorizing waste gases CIBAGEIGY AG 1 Aug 1974 [2 Aug 1973] 34050/74 Heading C1A A process for deodorizing waste gas in at least two washing stages in the presence of active chlorine comprises (a) washing a waste gas stream with a liquid containing active chlorine at pH 4-9 and subsequently (b) with a similar liquid but at pH 7-11 and 0À3 to 4 units more than the pH at (a), (c) recycling washing liquid from stage (b) to stage (a), the active chlorine being supplied in the substantial absence of chlorine dioxide, the washing liquid of at least one of (a) or (b) having an active chlorine content of at least 0À02 g./l. and active chlorine being added to stage (a) and active alkali in stage (b) in approximately the stoichiometer amount based on active chlorine added in stage (a). The waste gas may contain CO 2 . The source of active chlorine may be by the addition of Cl 2  to the waste gas or by the injection of Cl 2  into the washing liquid or aqueous hypochlorite solution. Malodorous constituents removed include amines, organic sulphur compounds and hydrogen sulphide.
Patent GB-618847-A (GB)
Title: Improved process for the filling of leather
IPC: C14C9/00
Filed: 1946-11-18
Abstract: 618,847. Filling leather. KELLY, D. B., SHARPHOUSE, J. H., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Nov. 18, 1946, No. 34093. [Class 76] Leather is filled by subjecting hides and skins to a tanning operation in conjunction with a treatment with an aqueous dispersion of polythene. The treatment may be effected before or after tanning. According to one example depickled New Zealand sheepskins as pH 5-7 are treated with a 30 per cent aqueous dispersion of a polythene of softening point 110‹C. and viscosity at 190‹C. of 3,500 poises repickled and chrome tanned. In another example rough tanned East Indian sheepskins after stripping in a solution of sodium bicarbonate and washing are treated with a dispersion of a polythene similar to the above and subsequently chrome tanned.
Patent GB-1344965-A (GB)
Title: Process for the production of thymol
IPC: C07C37/14
Filed: 1972-07-21
Abstract: 1344965 Thymol UNION RHEINISCHE BRAUNKOHLEN KRAFTSTOFF AG 21 July 1972 [7 Aug 1971] 34144/72 Heading C2C A process for the production of thymol comprises alkylation of m-cresol using propylene or a corresponding alkylating agent followed by isomerization of the reaction products in the presence of an acid catalyst, wherein the alkylation and isomerization are carried out in the presence of an aqueous catalyst solution containing zinc bromide or zinc chloride, thymol, isothymol if any and the resin-like residue are separated from the isomer mixture from which the catalyst has been removed and the residual mixture is recycled into the alkylation stage and wherein the alkylation is carried out at a temperature of from 100‹ to 140‹ C. and the isomerization at a temperature of from 150‹ to 170‹ C. An example is furnished.
Patent GB-1096829-A (GB)
Title: Optical phase measuring apparatus
Inventor: SMITH FRANCES HUGHES
IPC: G01B9/02
Filed: 1964-08-20
Abstract: 1,096,829. Modulating light. VICKERS Ltd. Oct. 13, 1965 [Aug. 20, 1964], No. 34165/64. Heading H4F. [Also in Divisions G1 and G2] The phase difference between the two mutually perpendicularly polarized components of a beam of light i.e. effectively two coherent beams, is changed at a constant rate by the use of a Pockels cell on to which are applied two electric fields in quadrature relationship from two sinusoidal electric supplies having a phase difference of 90 degrees. By choosing a suitable supply voltage the birefringence can be sufficient to make the crystal, a cubic crystal of, for example, cuprous chloride, equivalent to a rotating half-wave retardation plate. Alternatively a pair of electrodes of a Pockels crystal may be driven from a linear time base, such as that in an oscilloscope, so that the birefringence repetitively varies linearly with time (to give a sawtooth waveform).
Patent GB-1436259-A (GB)
Title: Digital integrator for evaluating operator selected portions of analogue chart traces
IPC: G06T1/00
Filed: 1973-07-19
Abstract: 1436259 Measuring voltage integrals BECKMAN INSTRUMENTS Inc 19 July 1973 [7 Aug 1972] 34349/73 Heading G1U Apparatus for evaluating the area under operator selected portions of a curve-trace 10 comprises a potentiometer and slider 18, 19 providing, at a sequence of sampling points as the chart 10 is moved, an analog signal to converter 24 which provides sets of pulses to a binary counter 28 corresponding in number to the analog input, the output of the counter being supplied as a series of 4-bit words to a delay line 37 whereby the outputs thereof correspond to trace samples crossing a reference position 29 at which is mounted a further pen 70 which generally produces a straight trace but may be controlled by the operator at 72 to produce a pulse as shown, and to produce a reset and start signal to an accumulator 47 which then adds all the output numbers from delay line 37 until the pen control 72 is operated again whereby it is cleared and the total transferred to a memory 49. This total may be brought out of the memory to a calculator 52 also under operator control and a desired calculated figure may be printed adjacent the relevant portion of the trace.
Patent GB-319539-A (GB)
Title: Improvements in windows
IPC: E06B3/44
Filed: 1928-11-22
Abstract: 319,539. Coulter, H. A. Nov. 22, 1928. Window frames; sliding sashes removable from frame.-Window frames are made from sheet metal bent to form channel guides, as shown in Fig. 2, and joined by riveting to a flanged sill and lintel, as shown in Fig. 3. The sashes are made T-shaped of bent sheet metal, as shown in Fig. 2. The channel guides 6, 7 are made deeper than the opposite guides 8, 9, and house channel bars 21, 22 urged against the sash by leaf springs 23, and adapted to hold same in any position. The sashes mav be removed from the frame by moving sideways against the springs 23 till clear of the grooves 8, 9. The sashes may be locked in the closed or intermediate positions by means of spring bars 24 thereon and pins 26 on the bars adapted to enter holes in the frame.
Patent GB-849399-A (GB)
Title: Improvements in or relating to garden shears
Inventor: HATTERSLEY ARCHIBALD
IPC: A01G3/02
Filed: 1958-10-28
Abstract: 849,399. Garden shears. WARD & PAYNE Ltd. April 20, 1959 [Oct. 28, 1958], No. 34417/58. Class 30 The blades 1, 2 of garden shears have cutting edges 13 formed by the junction of inner faces 10 with bevelled sides 12 which are of greater thickness than the non-cutting side 11 of the blade, the crosssection of the blade tapering towards the non- cutting side. The outer face 8 of each blade, from the point 7 to the tip 9, is ground back and the blade bevelled at 12 to leave a concentration of metal behind the cutting edge 13 which prevents separation of the blades by the material to be cut. The inner faces of the blade which are in face-toface contact at the pivot (see Fig. 4), are hollow ground (see Fig. 5) and the blades are given on 'twist' to ensure cutting point contact, only, of the cutting edges. The blades are preferably forged, the tangs 5 being set back on the handle side of the pivot to form a closed joint with shoulders 20 which meet when the shears are closed. The nut engaging the pivot is adjustable or riveted.
Patent GB-605299-A (GB)
Title: Improvements in or relating to sharpening devices for razor blades and the like
IPC: B24D15/08
Filed: 1945-12-19
Abstract: 605,299. Sharpening razor blades. ONIONS, J. H. Dec. 19, 1945, No. 34429. [Class 60] In a sharpening device for razor blades comprising a casing 10, at least one pair of hones 24, 30 mounted in the casing and spring-urged towards each other to engage with opposite faces of a blade 23 inserted between them, rotors 18, 19, 20 interconnected by gearing 18a, 19a, 20a, and having eccentric pins 21 to engage with openings in the blade, and driving means for effecting oscillation of the blade comprising a cord 35 frictionally engaging the rotors, by passing around grooves 37 therein, the cord is attached at one end to a spring-loaded drum 32 in the casing, and extends out of the casing at its other end, so that the rotors may be rotated alternately in opposite directions by alternately pulling on the cord and permitting it to return due to the spring-loading 34 of the drum. The drum is mounted in a separate compartment in the casing and arranged co-axially with the middle rotor 19, the cord 35 being led from the drum to the rotors through a bent tube 36. In a modification, the casing is adapted to house a safety razor in addition to the sharpening device and may be so shaped that a part of it forms a pistol grip when the casing is closed.
Patent GB-471889-A (GB)
Title: Improvements in and relating to hydraulic power transmission
IPC: F16H41/26
Filed: 1935-12-12
Abstract: 471,889. Hydraulic transmission of power. WILSON, W. G. Dec. 12, 1935, No. 34500. [Class 69 (ii)] In a hydraulic power transmitter of the F÷ttinger type the pump blades are for the main part plane radial, but at their outlet ends adjacent the inlet to the turbine are bent forwardly in the direction of rotation of the pump ; the blades of the turbine are also in the main plane radial, but at their inlet ends adjacent the outlet from the pump are bent backwardly relatively to the direction of rotation. As applied to a torque converter, the blades f carried by the driving member b are bent forwardly as at t; the blades h carried by the driven member c are bent backwardly as at h<1>. The reaction member comprises three parts, of which m is held against rotation in one direction by a sleeve n and stop-device o; the parts k, rotate oppositely being connected by gearing p, q, r. Specification 416,477 is referred to.
Patent GB-194441-A (GB)
Title: Improvements relating to glass rolling machinery
IPC: C03B13/04
Filed: 1921-12-23
Abstract: 194,441. Chance Bros. & Co., Ltd., and Forster, A., L. Dec. 23, 1921. Rolling.-Glass rolling machinery, particularly for rolling a sheet from a pot or charge of molten glass, is provided with means for dividing the sheet into plates or portions of the required length, and with means for imparting an additional forward or accelerated movement to the receiving table, each time a cut is made, in order to carry the plate clear of the succeeding plate. The machine comprises rolls a, b, Fig. 1, which roll a charge of metal into a sheet h in the usual manner, the sheet being received on a moving table q. The cutting-device consists of a roll d, Figs. 1 and 5, having a slot e which is entered by a blade c when the blade is depressed by a toggle linkage operated by a compressed air cylinder m. The blade c is normally supported by a rest g clear of the glass sheet, but a catch f, projecting from the end of the roll, engages the blade at the proper times and pushes it forwards, thus allowing it to be forced into the slot e and cut the sheet. The blade slides in slots in side frames i which swing about the shaft l on the roll d. The movement of the blade by the catch f causes it to swing until withdrawn by the cylinder, so that it moves with the sheet while making a cut. In order to ensure that the blade is withdrawn from the slot e at the proper time, the frames i are formed with cam slots o that are engaged by rollers p carried by a fixed support. The slots o are of such a shape that they lift the frame i until the blade is clear of the slot e. The frame then swings back to its initial position. The table q which receives the sheet is moved by a pinion which is driven from a shaft u, Fig. 8, through a differential gear v, w, y. In order to give an additional movement when the sheet is cut, a ratchet 3, which engages a pawl secured to the toothed annulus y, is reciprocated, thus moving the annulus and increasing the normal velocity of the gear train. The ratchet is oscillated by a reciprocating rack 12 which is automatically connected with the driving-shaft when the cutting-blade is depre&sed and is released at the completion of its return stroke.
Patent GB-386775-A (GB)
Title: Improved manufacture of cellulose films
IPC: C08J7/06
Filed: 1931-12-15
Abstract: In order to prevent regenerated cellulose films or sheets such as those obtained from viscose and ammoniacal copper solutions from adhering when stacked, the films, after formation and immediately before entering the drying apparatus, are passed through one or more aqueous baths containing about 0,1 per cent by weight of mineral matter in colloidal suspension or of a soluble salt capable of forming, either by dissociation or by reacting with calcium or other salts already contained in the film, a deposit of an insoluble substance whereby an extremely tenuous and practically imperceptible deposit is formed on the surface of the film on drying.  The film may be treated with a very dilute solution of sodium silicate and the alkalinity of the solution may be more or less neutralized.  Calcium salts contained in the water used in the wet treatment of the film lead to a deposit of calcium silicate upon the film and the deposit also contains silica which is dialysed from the solution of sodium silicate.  Instead of sodium silicate, other substances such as sodium carbonate, sodium bicarbonate, alkali oxalates, or sodium aluminate, which are capable of giving a slight superficial precipitation of insoluble calcium salts or of dissociating, leaving a slight insoluble deposit, may be used.  A colloidal suspension of silica may be used.  The colloidal suspensions are preferably colourless.  If desired the film may be treated successively with two solutions, the first of which when carried by the film into the second causes an insoluble substance to be deposited on the film.
Patent GB-912436-A (GB)
Title: Improvements relating to disc filter elements
IPC: B01D33/23
Filed: 1960-10-12
Abstract: 912,436. Filters. ROBINSON, C., and ROBINSON, G. W. Sept. 25, 1961 [Oct. 12, 1960], No. 34879/61. Class 46. A rotary disc filter element 4 has an undercut peripheral groove f and a metallic gauze filtering sheet on each face which is clamped tc the element at one end by a metal strip 8 and the overturned portions 9 of the sheets are forced down into the groove by a frame (not shown) placed around the ele ment, thus stretching the sheets across the faces of the element, the edges of the sheets being overlapped and held in the groove by lead beading 10, or waxed cord, which is swaged therein. In a modification the beading is of heavy gauge lead wire, the ends of which are secured to a clamp around a spigot 11.
Patent GB-1177040-A (GB)
Title: Method for Inhibiting Polymerization of Conjugated Dienes
IPC: C07C7/20
Filed: 1968-07-22
Abstract: 1,177,040. Stabilizing conjugated dienes. JAPANESE GEON CO. Ltd. 22 July, 1968 [26 July, 1967], No. 34882/68. Heading C5E. The tendency of a conjugated diene to polymerize in N-alkyl lower aliphatic monocarboxylic acid amide solvent solution when exposed to elevated temperatures, is reduced by adding to the solution, as polymerization inhibitor, N- methyl pyrrolidone in an amount of 0À05 to 10% by weight based on the solvent of the solution. The method may be used in the recovery by solvent absorption and extractive distillation of 1,3-butadiene, isoprene and cis- or trans-1,3-pentadiene, from specified C 4 - or C 5 -hydrocarbon fractions, respectively. Such polymerization is stated to be prevented even in the presence of water, iron rust, higher acetylenes and 1,2-butadiene. Solvents: monomethyl, dimethyl, monoethyl and diethyl formamide, dimethyl acetamide and methyl propyl acetamide. The following polymerization inhibitors or stabilizers may additionally be included in the solution: furfural, benzaldehyde, nitrobenzene and its derivatives, an α,#- unsaturated nitrile, aromatic mercaptan or aromatic nitro compound, cinnamic aldehyde, aldol, α-nitroso-#-naphthol, isatin, morpholine, Methylene Blue, sodium nitrite, hydroquinone, sulphur, phenolic compounds such as tertiary butyl catechol, and aromatic amines.
Patent GB-1058246-A (GB)
Title: Improvements in or relating to carding and drawing apparatus
IPC: D01G21/00
Filed: 1963-09-04
Abstract: 1,058,246. Carding and drawing apparatus. E. BETTONI. Sept. 4, 1963 [Sept. 6, 1962; June 28, 1963], No. 34921/63. Headings D1D, D1F and D1N. A carding and drawing arrangement includes two or more carding sets in series, each set having the main cylinder and licker-in and doffer rollers of substantially the same size. All moving elements are mounted on a supporting structure 21, Fig. 11, consisting of rolled steel sides connected by cross members and mounted on adjustable feet 108. The sides of the structure are pierced to receive electric motors, one of which drives the final carding set of the series, another drives the preceding carding sets and a third drives the extractor fan of apparatus for removing and filtering dust-laden air from within the side plates. In the event of non-delivery of a web by the last carding set or of the web being torn, current supply to driving motor 14 is cut off and a belt pulley 62 is braked in response to signals from photo-electric devices. Flat cleaning brushes 4' are stripped by rollers 123, Fig. 4. carrying steel pins and oscillated by a gear wheel 126 through a connecting rod 125. Grids and knives are fitted to each carding set. A suction cleaning arrangement, Fig. 6, is mounted within an enclosure mounted on sides 101 of the supporting structure. It includes fixed suction pipes 58 with orifices 59 and a laterally transversable duct 47 from which branch ducts depend. Air is drawn through the suction pipes and duct into a collector 38 and there filtered.
Patent GB-1278599-A (GB)
Title: Improvements in or relating to seals
Inventor: POTTER CHARLES WILLIAM
IPC: F16J15/34
Filed: 1968-07-23
Abstract: 1278599 End face shaft seals CHARLES WESTON & CO Ltd 14 Aug 1969 [23 July 1968] 35099/68 Heading F2B An end face seal for a rotary shaft 1 comprises an L-section sealing ring 3 having a sealing face 3a urged against a co-operating sealing face 6a by an elastomeric ring 5 housed in a rigid case 4 and applying axial and radial forces to the ring 3. The case 4 is an interference fit on the shaft and has a radial web contacting the axial limb 3b of the ring 3. A lobe 5a on the ring 5 engages a corner of the ring 3. The face 6a is on a second L-section ring 6 urged towards the ring 3 by an elastomeric ring 8, similar to ring 5, housed in a rigid case 7 which is an interference fit in the shaft housing 2. Gaps may be provided at locations A to allow access to the cavities B of sealed fluid pressure to thereby increase the sealing face loading.
Patent GB-342033-A (GB)
Title: Improvements relating to link connections or fastenings for driving belts
IPC: F16G7/00
Filed: 1929-11-18
Abstract: 342,033. Belt fastenings. JOHNSON, F. A. L., Pinfold House, Hampton Lane, Solihull, Warwickshire. Nov. 18, 1929, No. 35123. [Class 80 (i).] In fastenings for V-belts for motorcycle, fan, dynamo, &c. drives, pins 10 in plates 9 attached by clamps 8 to the belt ends carry pairs of interconnecting links 11 of leather, rubber, &c. their outer surfaces being of the same contour as that of the belt and their ends approaching closely to the belt ends, for which purpose the clamps 8 may be countersunk within the belt. The links 11 may be reinforced by raw hide, fibre, or metal and may abut at their centres 11a, being secured together by a screw 12. Two or more such composite links interconnected by metallic links may be used.
Patent GB-913758-A (GB)
Title: Holsters for pistols and similar articles
Inventor: WHITEHEAD HENRY
IPC: F41C33/02
Filed: 1960-10-18
Abstract: 913,758. Pistol holsters; knife sheaths. WALKER & SONS (TANNERS) Ltd., CHARLES. Sept. 14, 1961 [Oct. 18, 1960], No. 35622/60. Class 119. [Also in Group XVII] A pistol holster or knife sheath is made from a blank shaped as shown in Fig. 3 and formed with an extension 1 and slot 5, the sides of the blank being folded back along lines 6 to overlap each other and then secured together and to the extension 1 whereby the slot 5 serves as a mouth to the resulting pocket as shown in Fig. 1. The parts may be secured together by serving and/or cementing or, as shown, by rivets.